Amphibious vehicle



FIG. 1 is a front elevational view of an amphibious vehicle showing mynew design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a right side elevational view thereof; and,

FIG. 6 is a right side view thereof, with the wheels shown in raisedposition.

The ornamental design for an amphibious vehicle, as shown and described.